Adaptor for photographic flash device

Abstract

The adaptor is used as a means which exchangeably installs an optical supplementary means such as panels or filters in order to effectively take the photograph with a photographic flash device, the adaptor comprising a mounting part which has convex or indent parts for coupling with indent or convex parts on the body of the photographic flash device, an installing frame for installing optical supplementary means therein, and a pyramid-shaped hood part which connects the installing part with the mounting part.

What is claimed is: 
     
       1. A removable adaptor for exchangeably juxtaposing a supplementary optical panel, such as a light-converging, -- diffusing, -- attenuating or color-balancing filter panel in front of the substantially rectangular flashing plane of a photographic flash device body that has peripheral sidewall means which recede back from said flashing plane and include at least two opposed surfaces having first detent means provided thereon, said adaptor including:   substantially rectangular frame means including structure for receiving said panel therein;   rearwardly projecting mounting flange means having at least two opposed surfaces having second detent means provided thereon which are complementary with the first detent means and so arranged that when the mounting flange means is moved sufficiently axially towards the photographic flash device, the flange means becomes at least partially radially coincident with the peripheral sidewall means of the photographic flash device and the respective first and second detent means become engaged for removably mounting the adapter upon the photographic flash device; and   a forwardly expanding, frusto-pyramidal hood extending between and connecting together the mounting flange means and the frame means.   
     
     
       2. The adaptor of claim 1, wherein; the second detent means are concave indentations.   
     
     
       3. The adaptor of claim 1, wherein: the second detent means are convex protuberances.   
     
     
       4. The adaptor of claim 1, wherein: the frame means, mounting flange means and hood are provided as a unitary, integrated structure.   
     
     
       5. The adaptor of claim 1, further including: the hood having an inner peripheral surface thereof lined with means providing a light-reflector.   
     
     
       6. The adaptor of claim 1, wherein: the rearwardly projecting flange means is of tubular generally rectangular transverse cross-sectional shape so as to have a rearwardly projecting end; ad   further including:   means defining a respective pair of longitudinally directed slots in said rearwardly projecting flange means for each second detent means, one member of the respective pair being adjacent but laterally displaced in one direction from the respective second detent means and the other member of that pair being adjacent but laterally displaced in the opposite direction from the respective second detent means, each second detent means thereby being disposed on a finger strip defined between the two slots of the respective pair, each finger strip being resiliently flexible relative to the remainder of said rearwardly projecting flange means to facilitate installation and removal of said adapter relative to the photographic flash device.   
     
     
       7. In combination: a photographic flash device having a body with a forwardly-presented, substantially rectangular flashing plane and peripheral sidewall means which recede back from said flashing plane and include at least two opposed surfaces having first detent means provided thereon; and   a removable adapter for exchangeably juxtaposing a supplementary optical panel, such as a light -- converging, -- diffusing, -- attenuating or color balancing filter panel in front of said flashing plane   said adapter including:   substantially rectangular frame means including structure for receiving said panel therein;   rearwardly projecting mounting flange means having at least two opposed surfaces having second detent means provided thereon which are complementary with the first detent means and so arranged that when the mounting flange means is moved sufficiently axially towards the photographic flash device, the flange means becomes at least partially radially coincident with the peripheral sidewall means of the photographic flash device and the respective first and second detent means becomes engaged for removably mounting the adapter upon the photographic flash device; and   a forwardly expanding, frusto-pyramidal hood extending between and connecting together the mounting flange means and the frame means.   
     
     
       8. The apparatus of claim 7, wherein: the second detent means are concave indentations.   
     
     
       9. The apparatus of claim 7, wherein: the second detent means are convex protuberances.   
     
     
       10. The apparatus of claim 1, wherein: the frame means, mounting flange means and hood are provided as a unitary, integrated structure.   
     
     
       11. The apparatus of claim 7, further including: the hood having an inner peripheral surface thereof lined with means providing a light-reflector.   
     
     
       12. The apparatus of claim 7, wherein: the rearwardly projecting flange means is of tubular generally rectangular transverse cross-sectional shape so as to have a rearwardly projecting end; and   further including:   means defining a respective pair of longitudinally directed slots in said rearwardly projecting flange means for each second detent means, one member of the respective pair being adjacent but laterally displaced in one direction from the respective second detent means and the other member of that pair being adjacent but laterally displaced in the opposite direction from the respective second detent means, each second detent means thereby being disposed on a finger strip defined between the two slots of the respective pair, each finger strip being resiliently flexible relative to the remainder of said rearwardly projecting flange means to facilitate installation and removal of said adapter relative to the photographic flash device.